Improvement in electric motors



G. H. BANG BEST AVAILABLE COP Electric Motor No. 214,082. Patented A rn8, 1879.

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GEORGE H. BANGS, or new roman. Y.

IMPROVEMENT IN EL-ECTR-IC MOTOR-S.

Specification forming partofJLcttcrs Patent No. 214,082,4lated April 8,1879; application filed November 25, i878.

.To all whom it may concern:

Be it known that I GEORGE H. BANGS, of the city, county, and State ofNew Y ork,.have invented a new and Improved Electric Motor, ot which thefollowing is aspecification.-

Figure 1 is a side elevation of my improved motor. Fig. 2 is a sectionalplau viewn Fig. 3 is acentral vertical section taken on line a: a: inFig. 2. Fig.4 is a horizontal section taken on line 3 y in Fig. 3.

My invention relates to the class of motors propelled by aneleetriccurrent; and it consists in the combination of thelevers, thearmatures, and the ring with the electro-magnets and the segments, andin the combination of the levers. the nrnnitures, the ring, the frame,

thofly-wheel, the rod, and the cross-bar withthe elcctro-magnets, thesegments, and the central standard, as hereinafter more fully dcscribed.

Similar letters of reference indicate corr SIlOlldlllgJlfl ItS Inthedrawings, A is a base-piece, in the center of which there is a verticalstandard, B, around which, andatequal distances from it and from eachother, ar e placed, in the present case, four U electro-magn'ets, C G G0 Uutside of the magnets there are standards l), which support themetallic segments lfi Eh E, which are arranged in a circle concentricwith the circle in which the U-magnets are placed. A curvcd copperstrip, F, encircles the standards I), and is secured-to the base-pieceA.

A binding-post, G, is connected with one' cnd ot' the coppcnstrip F. Oneterminal of each magnet-wire is placed in electrical connectionwith thecopper strip 1*, the other terminal being connected with one of thesegmental pieces E.

A binding-post, I, is secured to the basepiece, and is placed. inelectrical communication with the central standard B. One end of eachsegmcntll E, 850., is oppositethe middle of the-space between the twoarms of. the adjacent clectro-magnct, and the several segments areseparated by a small space only.

'lwo split levers or working-beams, H, are pivoted at right angles toeach other, and in the same plane, to a sleeve, J, that screws up ordown on the standard B. These lovers are notched, so that-one will notinterfere with themovemeneof the other. Each lever H carries twoarmatures, K, one near each end.

' Each armature is thus supported in the proper relation-to the magnetbelow it.

The ends of the levers H are rounded, and 7 they are received byholes ina metallic ring, L, that rolls or performs a circular oscillation .uponthe metallicsegmcnts E met.

A vertical shaft, M, is journalcd in the standard B, and' supports afly-wheel, N. There isza slot, 0-, in one of the arms of the fly-wheelfor receiving the lower end of a rod, b, that extends upward throughmframe, G, secured to the nn L, .and also through a guide, (I, securedto thecross-p'iece c. The cross-pieces is supported by a prolongation oftwo of the standards D.

The ring Land the-segments EE, 820., form the commutator which directsthe electric current. The binding-posts G 1 reeei'vethe'bat- The severalsegmentsiE iE,.&c., being in electrical communicatipn with the magnets,and the magnets bcingi n electrical communi- .;cation with thebinding-post G, it follows that when the ring L, which is connected withthe biudirig-post Leomes into. contact with one of the segments E, acurrent is established in the wires of the magnet which is adjacent tothat segment, and the armature above the magnet is drawn downrthcrebymoving the fly-wheel N through the medium of the ring L, frame 0, androd b.'-. The rotary movement of the rod b causes the ring to roll fromone segment E E, &c., to another, and thus direct the electrical currentfrom one magnet to another inregnlar succession.

By this arrangement of mechanism a direct downward pull of the armaturcsis secured, so that the full force of the magnets is realized, and themaximum efi'ect is produced with a minimum of battery-p wer.

I am aware that aisk or wheel has been arranged above a sencs ofelectro-magnets, so as to he attracted by the said magnets,therebyimparting an-oscillating motion to the saiddislt or wheel; but

What I claim, and desire to secure by Let ters Patent, is-

l. The combination of the levers H, the armatures K, and the ring L withthe electr0 magnets 0 C 0 C and with the segments E, substantially asshown and described, and for the purpose set forth.

2. The combination of the levers H, the ar- 1 matures K', the'ring- L,the" named, the flywheel N, the rod b,'and the cross-her e with theelectrormugnets O O (J C the segments 2 E, and the central stal'ldarll13, substantially as shown and described, and for the purpose set forth.

GEORGE H. BANGS.

Witnesses:

G no.- M. HOPKINS, G. SEDGWIGK.

